MAX32555-LNS+T

Deep Cover embedded security solutions protect sensitive data through multiple layers of advanced physical security, providing the most secure key storage solution. The Deep Cover security microcontroller (MAX32555) offers an interoperable, secure, and cost-effective solution for building next-generation trusted devices such as mobile chips and cryptographic keypads. The device is based on a Cortex M3 processor, equipped with 512KB embedded flash, 96KB system RAM, and 1KB battery-backed AES self-encrypting NVSRAM. It incorporates all essential functions for mobile point-of-sale terminals, including a cryptographic engine, true random number generator, battery-backed real-time clock, environmental and tamper detection circuits, magnetic stripe reader, smart card controller with integrated transceiver (with direct support for 1.8V, 3.3V, and 5V cards), and an integrated secure keypad controller. It also includes a rich set of peripherals such as SPI, UART, DMA, ADC, and DAC, providing flexibility for system design control and differentiation.

Applications

• PCI mobile payment terminal
• ATM keypad
• EMV card reader

Key features

• Arm Cortex M3 processor core for easy application integration
• 60MHz core operating frequency via PLL
• 512KB dual-bank Flash with cache
• 96KB system SRAM
• 1KB AES self-encrypting NVSRAM
• Security features for system-level protection
• Secure bootloader with public key authentication
• AES, DES, and SHA hardware accelerators
• Modular arithmetic hardware accelerator supporting RSA, DSA, and ECDSA
• 8-wire secure keypad controller
• Hardware true random number generator
• Die shield with dynamic tamper detection
• 4 external tamper sensors with independent random dynamic patterns
• Flip-flop-based 256-bit battery-backed AES key storage
• Temperature and voltage tamper monitors
• Real-time clock
• Integrated peripherals to minimize external component count
• Three-track magnetic stripe head interface
• One ISO 7816 smart card interface with integrated transceiver (1.8V, 3V, and 5V)
• USB 2.0 device with internal transceiver and dedicated PLL
• 3 SPI ports, 3 UART ports, and 1 I2C controller
• 8 timers with PWM capability
• Up to 70 GPIO pins
• 6-channel 10-bit ADC and 1-channel 8-bit DAC
• Monochrome LCD controller
• 4-channel DMA controller
• Power management for optimized battery life and reduced active power consumption
• Single 3.3V supply operation
• Integrated battery backup switch
• Clock gating
• Low-current battery backup operation